Exemplo n.º 1
0
 private static String getPrivateKeyTypeFromObjectId(DERObjectIdentifier oid) {
   if (ASN1Registry.obj2nid(oid) == ASN1Registry.NID_rsaEncryption) {
     return "RSA";
   } else {
     return "DSA";
   }
 }
Exemplo n.º 2
0
  private static PrivateKey derivePrivateKeyPBES1(
      org.bouncycastle.asn1.pkcs.EncryptedPrivateKeyInfo eIn,
      AlgorithmIdentifier algId,
      char[] password)
      throws GeneralSecurityException {
    PKCS12PBEParams pkcs12Params = new PKCS12PBEParams((ASN1Sequence) algId.getParameters());
    PBEParameterSpec pbeParams =
        new PBEParameterSpec(pkcs12Params.getIV(), pkcs12Params.getIterations().intValue());

    String algorithm = ASN1Registry.o2a(algId.getAlgorithm());
    algorithm = (algorithm.split("-"))[0];
    Cipher cipher = OpenSSLReal.getCipherBC(algorithm); // need to use BC for PBEParameterSpec.

    SecretKeyFactory fact =
        OpenSSLReal.getSecretKeyFactoryBC(algorithm); // need to use BC for PKCS12PBEParams.
    SecretKey key = fact.generateSecret(new PBEKeySpec(password));

    cipher.init(Cipher.UNWRAP_MODE, key, pbeParams);
    // wrappedKeyAlgorithm is unknown ("")
    return (PrivateKey) cipher.unwrap(eIn.getEncryptedData(), "", Cipher.PRIVATE_KEY);
  }